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SportTrac Discussion
Engine & Drivetrain
Headers?
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<blockquote data-quote="Carey Frennier" data-source="post: 969960" data-attributes="member: 66764"><p>Really? 12 psi and nearing 500whp on a little M90. Lightning's can barely do that with a stock M112 and they have some forged internals with 0.8 larger displacement. </p><p></p><p></p><p></p><p>I think you need to have your truck dynoed on a couple other different dyno's. Maybe the calibration of this unit is off or something because those numbers are basically impossible for an M90. </p><p></p><p></p><p></p><p>You should be running in the high 12s or low 13s with that power to weight ratio with the stock trans tuning. </p><p></p><p></p><p></p><p>E85 may be cheaper but it burns faster and that is why you can tune to 105 octane. Your fuel economy is going to be decimated. </p><p></p><p></p><p></p><p>With the stock internals and bone stock trans...I think you're headed to a complete powertrain failure in brilliant fashion!</p></blockquote><p></p>
[QUOTE="Carey Frennier, post: 969960, member: 66764"] Really? 12 psi and nearing 500whp on a little M90. Lightning's can barely do that with a stock M112 and they have some forged internals with 0.8 larger displacement. I think you need to have your truck dynoed on a couple other different dyno's. Maybe the calibration of this unit is off or something because those numbers are basically impossible for an M90. You should be running in the high 12s or low 13s with that power to weight ratio with the stock trans tuning. E85 may be cheaper but it burns faster and that is why you can tune to 105 octane. Your fuel economy is going to be decimated. With the stock internals and bone stock trans...I think you're headed to a complete powertrain failure in brilliant fashion! [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
Headers?
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